Photonics and LED Lighting News

Modified optical centrifuge has potential to open up new ways for the study of superrotors

Using corkscrew-shaped laser pulses, scientists at DESY have devised a sophisticated optical centrifuge that can make molecules rotate rapidly about a desired molecular axis. The innovative method opens up new ways to control and study super fast spinning molecules, called superrotors. Until now, optical centrifuges can make molecules rotate about one specific axis only. The new scheme lets scientists select between two axes. Alec Owens, Andrey Yachmenev and Jochen Küpper from the Controlled Molecule Imaging (CMI) Group at the Center for Free-Electron Laser Science (CFEL) report their theoretical concept in the Journal of Physical Chemistry Letters.

Posted on 19 October 2018 | 1:20 pm

Do Not Stress About Losing Hair

Hair fall is quite common in men along with women. Many people believe it is normal for hair to fall, ignoring this problem can result in balding. If you’re trying to find the best hair growth products for girls, you can find numerous things you may do. While there are many hair fall products available ...

Posted on 18 October 2018 | 3:43 pm

Bursting the clouds for better communication

We live in an age of long-range information transmitted either by underground optical fibre or by radio satellites. But the throughput today is so great that radio frequency is no longer enough in itself. Research is turning toward the use of lasers which, although technically complex, have several advantages, especially when it comes to security. However, this new technology, currently in the testing phase, faces a major problem: clouds. Due to their density, clouds stop the laser beams and scramble the transfer of information. Researchers at the University of Geneva (UNIGE), Switzerland, have devised an ultra-hot laser that creates a temporary hole in the cloud, which lets the laser beam containing the information pass through. They have published their results in the journal Optica.

Posted on 18 October 2018 | 12:15 pm

Physics: Not everything is where it seems to be

Scientists at TU Wien, the University of Innsbruck and the ÖAW have for the first time demonstrated a wave effect that can lead to measurement errors in the optical position estimation of objects. The work now published in Nature Physics could have consequences for optical microscopy and optical astronomy, but could also play a role in position measurements using sound, radar, or gravitational waves.

Posted on 16 October 2018 | 10:53 am

Researchers report innovative optical tissue imaging method

A UK-wide research team, led by the University of St Andrews, has developed an innovative new way to optically image through tissue, which could allow for a more detailed understanding and diagnosis of the early stages of various diseases, including cancer.

Posted on 15 October 2018 | 12:56 pm

This Is Why You Need A Regular Dose Of Sports In Your Life

There are various reasons why you ought to never keep yourself from viewing your most loved wearing occasion and in the event that you trust this is certainly not a solid method to carry on with your life then you ought to comprehend that viewing your most loved games will advance sound way of life ...

Posted on 15 October 2018 | 10:53 am

Look At This Beauty Subscription

There are various magnificence items that you can put resources into, anyway with regards to excellence items individuals are in every case more distrustful about requesting them online in light of the fact that you can never truly judge the nature of the items except if you give them a shot. In any case, in ...

Posted on 15 October 2018 | 9:45 am

Connect With A Criminal Legal Counselor Today

Nowadays there are various individuals who are isolating from the accomplices and in the event that you are anticipating petitioning for legal separation since you are not content with your present circumstance then it is essential for you to connect with the correct separation legal advisor. While one can petition for legal separation online what ...

Posted on 14 October 2018 | 7:07 am

Learn How To Hire The Right Escort

These women are attractive, smart and experienced and are always willing to please you the way you want. This makes the entire experience a fun one without and risk. All the escorts with Escorts Dubai are clean and tested from time to time to ensure they do not suffer from any STD or disease. If ...

Posted on 13 October 2018 | 5:28 pm

The Best Deal On Goose Jackets

Goose is one of the biggest brands on the planet with regards to design. Aside from making some stunning embellishments, aromas and shades, Goose is likewise known for their great jacket gathering. In case you’re hoping to put resources into a Goose jacket, dependably guarantee you pick a confided in source. Canada goose sale offers ...

Posted on 12 October 2018 | 7:05 pm

A novel topological insulator

For the first time, physicists have built a unique topological insulator in which optical and electronic excitations hybridize and flow together. They report their discovery in Nature.

Posted on 12 October 2018 | 1:15 pm

World's fastest camera freezes time at 10 trillion frames per second

What happens when a new technology is so precise that it operates on a scale beyond our characterization capabilities? For example, the lasers used at INRS produce ultrashort pulses in the femtosecond range (10-15 s), which is far too short to visualize. Although some measurements are possible, nothing beats a clear image, says INRS professor and ultrafast imaging specialist Jinyang Liang. He and his colleagues, led by Caltech's Lihong Wang, have developed what they call T-CUP: the world's fastest camera, capable of capturing 10 trillion (1013) frames per second (Fig. 1). This new camera literally makes it possible to freeze time to see phenomena—and even light—in extremely slow motion.

Posted on 12 October 2018 | 12:17 pm

Physicists suggest new way to measure speed in liquid micro-flows

Scientists from ITMO University developed a novel optical method of measuring reagent delivery rates for "labs on a chip." The method is based on a dynamic interaction between a nanoantenna and luminescent molecules as the distance between them affects light intensity. Processed mathematically, these light dynamics determine the flow speed. This method can also be used for measuring temperature and identifying flow types. The research was published in Laser & Photonics Reviews.

Posted on 11 October 2018 | 1:09 pm

Innovative sensing technique could improve greenhouse gas analysis

An international team of researchers has used an unconventional imaging technique known as ghost imaging to make spectroscopic measurements of a gas molecule. The new approach by scientists at Tampere University of Technology in Finland, the University of Eastern Finland and the University of Burgundy Franche-Comté in France, works over a wide range of wavelengths and could improve measurements of atmospheric greenhouse gases such as methane.

Posted on 10 October 2018 | 4:09 pm

Ancient pigment can boost energy efficiency

A color developed by Egyptians thousands of years ago has a modern-day application as well – the pigment can boost energy efficiency by cooling rooftops and walls, and could also enable solar generation of electricity via windows.

Posted on 10 October 2018 | 1:11 pm

Harnessing silicon fabrication technology to build quantum optical circuits

A new study by scientists from the University of Bristol brings us a significant step closer to unleashing the revolutionary potential of quantum computing by harnessing silicon fabrication technology to build complex on-chip quantum optical circuits.

Posted on 10 October 2018 | 12:02 pm

Ultrafast optical fiber-based electron gun to reveal atomic motions

One of the most enduring "Holy Grail" experiments in science has been attempts to directly observe atomic motions during structural changes. This prospect underpins the entire field of chemistry because a chemical process occurs during a transition state—the point of no return separating the reactant configuration from the product configuration.

Posted on 9 October 2018 | 7:29 pm

Engineers build smallest integrated Kerr frequency comb generator

Optical frequency combs can enable ultrafast processes in physics, biology, and chemistry, as well as improve communication and navigation, medical testing, and security. The Nobel Prize in Physics 2005 was awarded to the developers of laser-based precision spectroscopy, including the optical frequency comb technique, and microresonator combs have become an intense focus of research over the past decade.

Posted on 8 October 2018 | 3:00 pm

New laser technology can identify unknown white powders from safe distance

White powders found at known or potential crime scenes present investigators and first responders with a dilemma. Touching the powders could be dangerous or compromise the evidence, and sending samples to a lab to be identified could take too long.

Posted on 8 October 2018 | 2:08 pm

Online Gaming Is The New Trend

On-line video games is something that has turn out to be more and more famous and even though humans can down load tons of games to their smartphones, avid gamers who loved the generation of on-line gaming on their computers will not have it another manner. There are a few excessive cease new games which ...

Posted on 8 October 2018 | 10:42 am

New display design could make lightweight, compact smart glasses a reality

Researchers have developed a fundamentally new approach to a see-through display for augmented reality, or smart glasses. By projecting images from the glass directly onto the eye, the new design could one day make it possible for a user to see information such as directions or restaurant ratings while wearing a device almost indistinguishable from traditional glasses.

Posted on 4 October 2018 | 2:00 pm

Nobel-winning physics key to ultra-fast laser research

The technique for generating high-intensity, ultra-short optical pulses developed by the 2018 Nobel Prize for Physics winners, Professor Gérard Mourou and Dr. Donna Strickland, provides the basis for important scientific approaches used in Swinburne's research.

Posted on 4 October 2018 | 12:05 pm

Russian scientists develop high-precision laser for satellite navigation

Scientists from ITMO University developed a laser for precise measurement of the distance between the moon and Earth. The short pulse duration and high power of this laser help to reduce errors in determining the distance to the moon to just a few millimeters. This data can be used to specify the coordinates of artificial satellites in accordance with the lunar mass influence to make navigation systems more accurate. The study was published in Optics Letters. 

Posted on 3 October 2018 | 12:20 pm

Revolutionary ultra-thin 'meta-lens' enables full-color imaging

Light of different colors travels at different speeds in different materials and structures. This is why we see white light split into its constituent colors after refracting through a prism, a phenomenon called dispersion. An ordinary lens cannot focus light of different colors to a single spot due to dispersion. This means different colors are never in focus at the same time, and so an image formed by such a simple lens is inevitably blurred. Conventional imaging systems solve this problem by stacking multiple lenses, but this solution comes at the cost of increased complexity and weight.

Posted on 3 October 2018 | 9:00 am

'Tools made of light': Nobel-winning laser science, explained

After three scientists won the Nobel Physics Prize on Tuesday for groundbreaking discoveries harnessing the power of lasers, here are a few basic facts about their research.

Posted on 2 October 2018 | 5:12 pm

Transition metal dichalcogenides could increase computer speed, memory

Transition metal dichalcogenides (TMDCs) possess optical properties that could be used to make computers run a million times faster and store information a million times more energy-efficiently, according to a study led by Georgia State University.

Posted on 2 October 2018 | 12:58 pm

Reaction of a quantum fluid to photoexcitation of dissolved particles observed for the first time

In his research, Markus Koch, Associate Professor at the Institute of Experimental Physics of Graz University of Technology (TU Graz), concentrates on processes in molecules and clusters which take place on time scales of picoseconds (10-12 seconds) and femtoseconds (10-15 seconds).

Posted on 2 October 2018 | 12:40 pm

Nobel-winning laser discoveries that lit up the field

Three scientists shared the 2018 Nobel Physics Prize on Tuesday for their work that has "revolutionised" the field of laser physics.

Posted on 2 October 2018 | 11:20 am

Wonderful Benefits Riddles and Answers Can Give

Riddles and answers are not just mere question and answer stuff you can find in books, newspapers, magazine and even on the web. As long as you can find a good source of great riddles, it can surely let you have far bigger benefits. You just have to know about these great perks, for you ...

Posted on 2 October 2018 | 11:01 am

Attosecond pulse leads to highest molecular level probe resolution

Attosecond pulses enable physicists to probe dynamic processes in matter with unprecedented time resolution. This means such technology can provide better insights into the dynamics of electrons in molecules. Devising a source of ultra-fast X-ray pulsating in the attosecond range is no mean feat.

Posted on 1 October 2018 | 4:48 pm

Microresonators offer a simpler approach to sensing with light pulses

Ultrashort optical pulses are becoming increasingly relevant in a number of applications, including distance measurement, molecular fingerprinting and ultrafast sampling. Many of these applications rely not only on a single stream of pulses—also known as "optical frequency combs"—but require two or even three of them. Nonetheless, these multi-comb approaches significantly speed up acquisition time over conventional techniques.

Posted on 1 October 2018 | 3:00 pm

Space-borne quantum source to secure communication

Soon, powerful quantum computers will be able to easily crack conventional mathematically encrypted codes. Entangled photons generated by a spaceborne quantum source could enable hack-proof key exchange for ultra high security applications. A Fraunhofer research team has developed a high performance quantum source robust enough for deployment in space. They aim to launch the first European quantum satellite in some four years' time.

Posted on 1 October 2018 | 12:38 pm

Defects promise quantum communication through standard optical fiber

An international team of scientists led by the University of Groningen's Zernike Institute for Advanced Materials created quantum bits that emit photons that describe their state at wavelengths close to those used by telecom providers. These qubits are based on silicon carbide in which molybdenum impurities create color centers. The results were published in the journal npj Quantum Information on 1 October.

Posted on 1 October 2018 | 11:29 am

Reasons To Buy The Best Photography Lens For Sony A6500

Having the best camera like the Sony a6500 is not enough if you do not have the right lens that you can use on certain shoots. It could seem very unnecessary and impractical to purchase specific kind of lens, but having the right photography lens for Sony a6500 can actually help you a lot. Why ...

Posted on 30 September 2018 | 5:11 pm

Tips For Buying The Best Coffee Machines

No doubt, coffee machines are getting huge popularity among the countless people from all around the globe. If you want to buy the coffee machine then it is important to do proper research on the internet. With the help of this, you can make your choices with ease and also in a simple manner. There ...

Posted on 30 September 2018 | 11:23 am

NIST's electro-optic laser pulses 100 times faster than usual ultrafast light

Physicists at the National Institute of Standards and Technology (NIST) have used common electronics to build a laser that pulses 100 times more often than conventional ultrafast lasers. The advance could extend the benefits of ultrafast science to new applications such as imaging of biological materials in real time.

Posted on 27 September 2018 | 6:00 pm

Decoding multiple frames from a single, scattered exposure

Engineers at Duke University have developed a way to extract a sequence of images from light scattered through a mostly opaque material—or even off a wall—from one long photographic exposure. The technique has applications in a wide range of fields from security to healthcare to astronomy.

Posted on 27 September 2018 | 2:44 pm

New way to control meandering electrons and generate extreme-ultraviolet emissions

A team at the Center for Relativistic Laser Science, within the Institute for Basic Science (IBS), has found a completely new way to generate extreme-ultraviolet emissions; that is, light having a wavelength of 10 to 120 nanometers. Published in Nature Photonics, this method is expected to find applications in imaging with nanometer resolution, next-generation lithography for high precision circuit manufacturing, and ultrafast spectroscopy.

Posted on 27 September 2018 | 12:31 pm

Instrument boosts analysis of small, extremely dark materials

Researchers have developed a new instrument that can analyze light reflected from very small or extremely dark materials such as some meteorite samples and VANTABlack, the darkest manmade substance created. The instrument is already revealing new information about these and other difficult-to-analyze surfaces.

Posted on 26 September 2018 | 4:27 pm

ESA technology making L.A. Metro a safer ride

Thousands of daily passengers on the Los Angeles Metro will ride more securely with the deployment of cutting-edge ESA-patented screening technology to detect concealed weapons or explosives.

Posted on 26 September 2018 | 2:20 pm